Material or article handling – Vertically swinging load support – Shovel or fork type
Patent
1981-12-07
1984-03-13
Spar, Robert J.
Material or article handling
Vertically swinging load support
Shovel or fork type
414694, 414718, 414722, 212149, 212230, 212267, E02F 522
Patent
active
044364768
ABSTRACT:
A rod device for use as an arm of an excavator, so as to be pivotally supported by a boom and inclined relative to the boom by an actuator, including a plurality of tubular elements assembled in a telescoping manner, means for restricting relative axial movement of each two mutually telescoping tubular elements, and a means for drivingly connecting the outermost and the innermost of the plurality of telescoping tubular elements, wherein a clamshell bucket or a rock breaker is directly mounted to the tip end of the rod device so that the rod device serves both as an arm and a cable for suspending the clamshell bucket or the rock breaker.
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Siemens Terrance L.
Spar Robert J.
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